88 



BULLETIN 129, UNITED STATES NATIONAL MUSEUM 



Measurements. — Male, holotype, length of carapace to tip of horns 

 10.5, width including spines 8.5 mm. 



Range. — Gulf of California, Mexico, to Panama. 



Material examined. — *• 



San Francisquito Bay, Lower California; beach; April 9, 1911; 

 Albatross; 1 male, soft shell (56219). 



Pearl Islands, Bay of Panama; S. W. Garman; 1 male (holotype) 

 and 1 female (2040, M. C. Z.), 1 male (55120, U.S.N.M.). 



EUCINETOPS BLAKIANA Rathbun 



Plate 23, figs. 1 and 2 



Eucineto-ps blakiana Rathbun, Proc. U. S. Nat. Mus., vol. 19, 1896, p. 141 

 (type-locality, Port Royal, Jamaica; holotype. Cat. No. 19405, 

 U. S. N. M.); Ann. Inst. Jamaica, vol. 1, 1897, p. 4; Bull. Lab. Nat. Hist. 

 State Univ. Iowa, vol. 4, 1898, p. 252; Bull. U. S. Fish Comm., vol. 20, 

 for 1900, pt. 2 (1901), p. 55. 



Fig. 24.— EUCINETOPS blakiana (19405). a. Right chela of male, X 35. 6. Rostrum of female.X 20 



Diag7iosis.— Rostral horns broad, triangular, tipped with a spine. 



Fingers of male not gaping. Carapace width behind postorbital 



spine three-fourths of branchial width. 



Description. — Antero-lateral margins slight- 

 ly converging anteriorly, nearly straight. Sur- 

 face uneven; median regions elevated, hepatic 

 region depressed, separated from branchial by 

 a deep hollow and a marginal sinus. Antero- 

 lateral margin tuberculate, a spinule at pos- 

 tero-lateral angle; a few additional tubercles 

 on upper surface of branchial region and on 

 intestinal region. Front depressed, with two 

 triangular, rounded lobes, tipped with a 

 small, sharp, upturned spine and separated 

 by a V-shaped sinus. Outer orbital tooth 

 longer than broad, acute, upturned, separated 



Fig. 25.— EUCINETOPS blakiana, from Upper margin of orbit bv a narrow, 



FEMALE (19405), MAxiLLiPED, rouudcd siuus. Eyc-stalks filling Orbit, taper- 



ing to near cornea; tip slightly enlarged. 



Antero-external lobe of first movable article of antennae moderately 



developed, a tooth at outer angle, not reaching end of rostrum. 



